About Koster Irrigation

Serving Eastern North Carolina with licensed irrigation, plumbing, and outdoor water-management expertise since 1994.

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Established in 1994

Choose a contractor with proven industry experience and a reputation for quality workmanship.

Licensed Irrigation Contractor

NC Licensed Irrigation Contractor #C-478

Licensed Plumbing Contractor

NC Licensed Plumbing Contractor #32636

Our Journey:
From Vision to Value

Founded with a commitment to excellence, our company has grown from a small startup to a leading provider of irrigation services. With years of industry experience, we understand the needs of our clients and are dedicated to delivering reliable solutions for all types of projects. Our team prioritizes quality workmanship and customer satisfaction, establishing long-lasting relationships built on trust. Each project we undertake reflects our dedication to sustainable practices, ensuring our systems not only perform effectively but also contribute positively to the environment.

Meet Our Team

Dedicated professionals leading the way in irrigation services.

Will Koster

Owner. Est. 1994

Taylor Gurganus

Office Manager

Ted Gardner

Lead Service Tech – 11 years

Robert Krob

Installation Lead

Regino Soria

Installation Group
19 Years

Elias Pertez

Installation Group

Mark Bass

Service Tech
(Licensed Backflow Tester)

James Madrigal

Installation Group
(Licensed Backflow Tester)

Stuart Taylor

Service Tech
(Licensed Backflow Tester)

Allen O’Neal

Service Tech

Areas Served:

We currently service the following areas: Raleigh, Durham, Wilson, Rocky Mount,
Greenville, Goldsboro, Apex, Garner, and Clayton.

Businesses are built on customer satisfaction

Customers testimonials

I had a recent incident where another company caused damage to my irrigation system. Will and his team helped get the issued resolved and were very helpful with information to share with the company that did the damage pointing out where it was and the probable cause. Not only was my system fixed quickly and running better than ever but I was able to get the damage covered by the other company. I really appreciate the patience and great work I received from Koster Irrigation.

M. McLeoad

Koster irrigation is the BEST! Will and his team are so good at what they do. Will is very responsive and cares about your project and continues to improve upon anything that is needed to make your system the best it can be. They do both irrigation and lighting at fair and reasonable pricing. I have had many homes and Koster Irrigation has been by far the best irrigation/lighting company we have ever had help us. You will be happy with their work and that you chose them!

Alice Bender

Koster Irrigation provided excellent service on the repairs/maintenance of our residential sprinkler system. I was contacted promptly within 24 hrs after leaving a request for service, and the work was performed within 5 days after my request. Technician arrived promptly to the minute I was informed he would arrive, and upfront explained how fees are determined, so that there would be no misunderstanding on an Invoice amount. Tech was professional, polite and left the sprinkler system in perfect running order. He offered maintenance tips I could easily do to avoid unnecessary problems. Lastly, and although some customers may think otherwise, we appreciate the Invoice being sent promptly by email. I was well satisfied with the work and the amount of the Invoice. Koster Irrigation is to be commended for having established a well-run business.

Robert Mazur

Koster Irrigation is the BEST! Will Koster the owner is great! They have done my architectural lighting and my irrigation automated system. He has some outstanding guys that do a fantastic job! From start to finish, they are neat and organized!

I highly recommend them, and they are a Five ***** Company all the way!

George W McDonald

Partner With An Irrigation Contractor You Can Trust

Whether you need a new irrigation system, repairs, upgrades, or ongoing maintenance, Koster Irrigation delivers professional solutions designed for long-term performance.